diff --git a/src/Microsoft.DotNet.Watcher.Tools/Internal/MsBuildFileSetFactory.cs b/src/Microsoft.DotNet.Watcher.Tools/Internal/MsBuildFileSetFactory.cs
index 1c778101db..01b8f4a996 100644
--- a/src/Microsoft.DotNet.Watcher.Tools/Internal/MsBuildFileSetFactory.cs
+++ b/src/Microsoft.DotNet.Watcher.Tools/Internal/MsBuildFileSetFactory.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -71,7 +71,7 @@ namespace Microsoft.DotNet.Watcher.Internal
         {
             EnsureInitialized();
 
-            var watchList = Path.GetTempFileName();
+            var watchList = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
             try
             {
                 var projectDir = Path.GetDirectoryName(_projectFile);
diff --git a/src/Microsoft.Extensions.SecretManager.Tools/Internal/ProjectIdResolver.cs b/src/Microsoft.Extensions.SecretManager.Tools/Internal/ProjectIdResolver.cs
index 83fdde4463..cf3105cea2 100644
--- a/src/Microsoft.Extensions.SecretManager.Tools/Internal/ProjectIdResolver.cs
+++ b/src/Microsoft.Extensions.SecretManager.Tools/Internal/ProjectIdResolver.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -34,7 +34,7 @@ namespace Microsoft.Extensions.SecretManager.Tools.Internal
                 ? configuration
                 : DefaultConfig;
 
-            var outputFile = Path.GetTempFileName();
+            var outputFile = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
             try
             {
                 var args = new[]